ArticleBlood2026
Mucosal calprotectin is associated with severity of aGI-GVHD and poor outcomes after allogeneic stem cell transplantation.
Article in Blood, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Upregulation of S100A8/A9 Potentiates Radiation-Induced Intestinal Injury via MAPK and NF-κB Signaling Pathways.Advances in radiation oncology · 2026Article
- Fecal calprotectin as a biomarker for the diagnosis of gastrointestinal graft-versus-host disease following allogeneic hematopoietic stem cell transplantation.Bone marrow transplantation · 2026Observational
- [The influence of different collagenases on the analysis of immune cells in salivary glands of mice with chronic graft-versus-host disease].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2026Article
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26 authors.
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No grant is acknowledged in the PubMed record.
Abstract
abstractCalprotectin, a calcium- and zinc-binding protein that comprises the subunits S100A8 and S100A9, has been extensively studied as a biomarker of gastrointestinal (GI) inflammation through fecal and serum analyses. However, its role in intestinal tissue remains poorly understood because of the limited availability of biopsy specimens. In this study, we analyzed S100A8 and S100A9 messenger RNA (mRNA) expression in 579 intestinal biopsy specimens from allogeneic stem cell transplantation recipients and observed a strong association with acute GI graft-versus-host disease (aGI-GVHD; P< .001). Neutrophil infiltration correlated with the severity of aGI-GVHD (P< .001), and calprotectin expression was strongly linked to Toll-like receptor 4 (TLR4; P< .001) and TLR2 (P< .001) expression. Both TLR4 and aGI-GVHD were associated with elevated calprotectin mRNA levels (P< .001). When patients received broad-spectrum antibiotics at disease onset, calprotectin expression was suppressed (S100A8, P = .001; S100A9, P = .01). GI site-specific differences in calprotectin expression were identified: during severe aGI-GVHD, levels increased up to 30-fold in the small intestine and up to fivefold in the large intestine with respect to mild or no aGI-GVHD, whereas under homeostasis, the large intestine exhibited higher baseline calprotectin (P = .001). The high clinical relevance of this finding is evident from the observation that calprotectin expression was prognostic for transplant-related mortality. Our study suggests that (1) calprotectin is a potential biopsy biomarker in aGI-GvHD and (2) calprotectin expression and neutrophil infiltration possibly indicate translocation of microbiota, which (3) may be modulated by antibiotics.
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